查询词典 recombination

Accordingly, we confirm that the NC is caused by carries recombination in active region instead of by other exterior factors.

它表明，LEDs中的NC是由其激活区载流子复合引起的，而非外部原因造成。

As the bar gene is promoted by the CaMV35 promoter, in which there is a 19bp palindromic sequence could act as recombination hot spot and lead to DNA rearrangement, we presumed that the transgene recombination events happened during the integration course have generated the complex Southern patterns of bar gene expression cassette.

线形基因表达框的游离DNA末端和CaMV35S启动子中重组热点介导的转基因重组可能是导致bar基因表达框复杂整合的重要原因。

As to the mechanisms of DNA loss, unequal homologous recombination and illegitimate recombination are thought to be the counterbalances to the unlimited expansion of a genome.

植物基因组多倍化和转座子积累是导致基因组增大的主要动力，而同源不平等重组和非正规重组则是驱动基因组DNA丢失的潜在动力，以制约基因组无限制地增大。

In the manykinds of color separating and color recombination system,the slab dichroics are usedas color-separating system and cross dichroic cube as the color recombination system.

在对各种分色合色系统方案进行比较后，说明了采用平板分色、立方棱镜合色系统的优点。

Suppression of recombination is the prerequisite for plant sex chromosome evolution from a pair of autosomes. Recombination suppression around the locus controlling sex determination results in sex chromosome degeneration and differentiation.

重组抑制是植物性染色体由常染色体进化而来的前提条件，性别决定位点区域发生的重组抑制使早期的性染色体发生了退化和分化。

A gene can be defined as the smallest hereditary unit capable either of recombination or of mutation. Alternatively it may be described as a unit of function, a CISTRON, which may be much larger than a unit of recombination or mutation, and controls the synthesis of a single polypeptide or a messenger RNA molecule whose genetic code is sontained within the gene.

基因是重组和突变的最小遗传单位，也可以被描述为一种功能单位———顺反子，顺反子可能比重组和突变单位大的多，它控制单个多肽的合成或合成含有遗传信息的信使 RNA 密码子。

In this study, to define the functional roles and mode of the upstream regulatory elements ofα-globin gene cluster,αMⅡwas obtained, in which the 31.7kb sequence including HS-33, HS-10、HS-8 and HS-4 was deleted by defective prophage mediated by the homologous recombination;αMⅢwas also constructed, in which the 35.4kb sequence including HS-40、HS-33、HS-10、HS-8 and HS-4 was deleted by the method of temperature sensitive shuttle vector mediated homologous recombination.

在此基础上，为了定义α-珠蛋白基因簇上游各调控元件的调控功能，并探讨其作用机制，本研究利用缺陷型原噬菌体介导的同源重组法修饰α-BAC，删除包括HS-33、HS-10、HS-8和HS-4在内长达31.7kb的序列得到BAC突变体αMⅡ；又利用温度敏感型的穿梭载体介导的同源重组法删除包括HS-40、HS-33、HS-10、HS-8和HS-4在内达35.4kb的序列，得到BAC突变体αMⅢ。

Since Al〓Ga〓In〓P possesses larger valence band difference to GaAs and wider energy gap, minor carrier reverse injection from base and space charge region recombination in the emitter are effectively suppressed in Al〓Ga〓 In〓P/GaAs HBT. Under most circumstances, quasi-neutral base recombination current dominates the base current, and its ratio to collector current varies little with collector current and temperature, thus greatly stabilizes the current gain.

Al〓Ga〓〓In〓P/GaAs HBT由于异质结的△Ev较大，发射区禁带较宽，有力地抑制了基区少子反向注入流和发射区空间电荷区复合电流；在大多数情况下，基极电流以准中性基区复合电流为主，其与集电极电流的比值随集电极电流和温度的变化极小，稳定了电流增益。

Construction of the homologous arms directing the homologous recombination For the sake of seeking for the more efficient integrating strategy to make the foreign gene insert in the specific site and don't destroy the host expressional and regulatory elements such as promoters and introns, we experimented targeting the Bombyx morl fibroin heavy-chain exon II with the green fluorescent protein gene by homologous recombination technology.

为了探索一条更为有效的整合策略，使外源基因能定点整合到靶位点，又不破坏宿主基因的启动子、内含子等表达调控元件，令外源基因对宿主生理功能的影响达到最小，我们以丝素重链基因2号外显子为整合靶位点，以便将外源基因定点整合其间。

Let's take the Oryza sativa single-cross homologous recombination chloroplast expression vector pRSMGA which was constructed with seven fragments as an example, if the vector pRSMGA was constructed in using the method what had mentioned, only twice recombination and transformation would be done.

以7片段拼接的水稻单交换质体定点整合表达载体pRSMGA的构建为例，应用上述方法构建只需做两次连接、转化，且其重组、转化效率高。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。